An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites
A process developed at the Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB) for the supply and processing of wet-preserved fiber plants opens up new potential uses for such resources. The processing of industrial hemp into fiber materials and products thereof is undergoing experim...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-07-01
|
Series: | Agriculture |
Subjects: | |
Online Access: | https://www.mdpi.com/2077-0472/9/7/140 |
id |
doaj-85eb7c4fdb2946f19462025f5ae05ee5 |
---|---|
record_format |
Article |
spelling |
doaj-85eb7c4fdb2946f19462025f5ae05ee52021-04-02T04:48:05ZengMDPI AGAgriculture2077-04722019-07-019714010.3390/agriculture9070140agriculture9070140An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of CompositesHans-Jörg Gusovius0Carsten Lühr1Thomas Hoffmann2Ralf Pecenka3Christine Idler4Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Max-Eyth-Allee 100, 14469 Potsdam, GermanyLeibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Max-Eyth-Allee 100, 14469 Potsdam, GermanyLeibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Max-Eyth-Allee 100, 14469 Potsdam, GermanyLeibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Max-Eyth-Allee 100, 14469 Potsdam, GermanyLeibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Max-Eyth-Allee 100, 14469 Potsdam, GermanyA process developed at the Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB) for the supply and processing of wet-preserved fiber plants opens up new potential uses for such resources. The processing of industrial hemp into fiber materials and products thereof is undergoing experimental research along the value-added chain from the growing process through to the manufacturing of product samples. The process comprises the direct harvesting of the field-fresh hemp and the subsequent anaerobic storage of the entire plant material. Thus, process risk due to unfavorable weather conditions is prevented in contrast to common dew retting procedures. The effects of the anaerobic storage processes on the properties of the bast part of the plant material are comparable to the results of common retting procedures. Harvest storage, as well as further mechanical processing, leads to different geometrical properties compared to the bast fibers resulting from traditional post harvesting treatment and decortication. The fiber raw material obtained in this way is well suited to the production of fiberboards and the reinforcement of polymer or mineral bonded composites. The objective of this paper is to present recent research results on final products extended by a comprehensive overview of the whole supply chain in order to enable further understanding of the result influencing aspects of prior process steps.https://www.mdpi.com/2077-0472/9/7/140industrial hempharvest riskwet preservationcompositefiberboard |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hans-Jörg Gusovius Carsten Lühr Thomas Hoffmann Ralf Pecenka Christine Idler |
spellingShingle |
Hans-Jörg Gusovius Carsten Lühr Thomas Hoffmann Ralf Pecenka Christine Idler An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites Agriculture industrial hemp harvest risk wet preservation composite fiberboard |
author_facet |
Hans-Jörg Gusovius Carsten Lühr Thomas Hoffmann Ralf Pecenka Christine Idler |
author_sort |
Hans-Jörg Gusovius |
title |
An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites |
title_short |
An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites |
title_full |
An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites |
title_fullStr |
An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites |
title_full_unstemmed |
An Alternative to Field Retting: Fibrous Materials Based on Wet Preserved Hemp for the Manufacture of Composites |
title_sort |
alternative to field retting: fibrous materials based on wet preserved hemp for the manufacture of composites |
publisher |
MDPI AG |
series |
Agriculture |
issn |
2077-0472 |
publishDate |
2019-07-01 |
description |
A process developed at the Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB) for the supply and processing of wet-preserved fiber plants opens up new potential uses for such resources. The processing of industrial hemp into fiber materials and products thereof is undergoing experimental research along the value-added chain from the growing process through to the manufacturing of product samples. The process comprises the direct harvesting of the field-fresh hemp and the subsequent anaerobic storage of the entire plant material. Thus, process risk due to unfavorable weather conditions is prevented in contrast to common dew retting procedures. The effects of the anaerobic storage processes on the properties of the bast part of the plant material are comparable to the results of common retting procedures. Harvest storage, as well as further mechanical processing, leads to different geometrical properties compared to the bast fibers resulting from traditional post harvesting treatment and decortication. The fiber raw material obtained in this way is well suited to the production of fiberboards and the reinforcement of polymer or mineral bonded composites. The objective of this paper is to present recent research results on final products extended by a comprehensive overview of the whole supply chain in order to enable further understanding of the result influencing aspects of prior process steps. |
topic |
industrial hemp harvest risk wet preservation composite fiberboard |
url |
https://www.mdpi.com/2077-0472/9/7/140 |
work_keys_str_mv |
AT hansjorggusovius analternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT carstenluhr analternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT thomashoffmann analternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT ralfpecenka analternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT christineidler analternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT hansjorggusovius alternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT carstenluhr alternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT thomashoffmann alternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT ralfpecenka alternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites AT christineidler alternativetofieldrettingfibrousmaterialsbasedonwetpreservedhempforthemanufactureofcomposites |
_version_ |
1724173061553389568 |